High-quality double-walled carbon nanotubes produced by catalytic decomposition of benzene

Seung Chul Lyu, Bao Chun Liu, Cheol Jin Lee, Hee Kwang Kang, Cheol Woong Yang, Chong Yun Park

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

High-quality double-walled carbon nanotubes (DWNTs) have been produced by catalytic decomposition of benzene over Fe-Mo/Al2O3 catalyst at 900 °C. The produced carbon materials are DWNT bundles free of amorphous carbon covering on the surface, DWNTs have inner tube diameters in the range of 0.69-2.53 nm and outer tube diameters in the range of 1.44-3.30 nm. The interlayer spacing between graphene layers ranges from 0.35 to 0.38 nm. Transmission electron microscopy and Raman analysis show that produced carbon materials have a low defect level in the atomic carbon structure, indicating the synthesis of high-quality DWNTs. Our results demonstrate that benzene is an ideal carbon feedstock to synthesize high-purity DWNTs over Fe-Mo/Al 2O3 catalyst.

Original languageEnglish
Pages (from-to)3951-3954
Number of pages4
JournalChemistry of Materials
Volume15
Issue number20
DOIs
Publication statusPublished - 2003 Oct 7
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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